<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Register failed!</title>
</head>
<body>
    <h1 class="h1">Register failed! Your number has already existed!</h1>
    <h1 class="h1">
        Return to <a th:href="@{/register}">register</a>
        or <a th:href="@{/}">Sign in</a>.
    </h1>
</body>
</html>